One of my main home defense guns is my SR40, I also carry it from time to time. The only problem I have when training with this gun is it won't malfunction, so I have know practice clearing them should one ever happen. I was think about loading up some rounds with no powder and just keeping the old primer in or not putting a primer in at all. These would he randomly thrown in with my practice ammo so I never know when one will pop up. Has anyone ever tried this before?

Ofcourse this would pretty much only cover missfires, so any other suggestions for simulating malfunctions would be great.

These rounds would be treated as live ammo and mixed in with practice rounds for safety reasons. I carry factory ammo so they would never be mixed in with those.

Any thoughts?

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Someday I'll be good enough to know if a gun is accurate or not.